For so long it seemed Baauer would never shake the viral frenzy that spawned from his 2013 single, “Harlem Shake,” but the LuckyMe producer returned today with a track that’s made us believers, once more. “Temples” pulls together M.I.A. and k-pop idol G-Dragon for a killer collab that show’s promise from Baauer’s long-awaited debut album, Aa, out Friday.